reference [REF] or negative potential terminal for Contact 1 of the corresponding alarm and provides a
current path for external alarm devices.
describes the functions of the alarm contacts.
Table 11: Alarm Relay Contact Functions
Function
Contact Name
Contact Name
Current is not flowing through Contact 1 and Contact 2 [REF] when
operating normally. When the current flows, the closed alarm is
generated.
Normally Open (NO)
Contact 1
Current is flowing through Contact 1 and Contact 2 [REF] when
operating normally. When the current stops flowing, the open alarm
is generated.
Normally Closed (NC)
Provides the current path for the external alarm-reporting device
and functions as a reference or negative potential terminal for
Contact 1.
Reference (REF)
Contact 2
shows an example of a wiring diagram for a simple output alarm-reporting device.
In this case the device is a light bulb that illuminates when the device encounters a condition that activates
the red alarm LED and relay contacts. The alarm relay contacts can also be used to activate other devices
such as bells or buzzers.
Figure 12: Sample Output Alarm-Reporting Device
shows an example of a wiring diagram for a simple input alarm-reporting device. In
this case the push button switch is an alarm sensor that triggers an input alarm when a door-open condition
occurs.
55
Summary of Contents for ACX2000
Page 1: ...ACX2000 and ACX2100 Universal Metro Router Hardware Guide Published 2020 09 07 ...
Page 91: ...Front Panel of an ACX2000 Router 47 LEDs on ACX2000 and ACX2100 Routers 57 91 ...
Page 116: ...4 CHAPTER Maintaining Components Maintaining ACX2000 and ACX2100 Components 117 ...
Page 125: ...5 CHAPTER Troubleshooting Hardware Troubleshooting ACX2000 and ACX2100 126 ...
Page 139: ...139 ...
Page 144: ...Restricted Access Warning 144 ...
Page 148: ...148 ...
Page 161: ...Jewelry Removal Warning 161 ...
Page 164: ...Operating Temperature Warning 164 ...
Page 174: ...DC Power Disconnection Warning 174 ...
Page 178: ...DC Power Wiring Sequence Warning 178 ...